title: Mode-locked VECSEL emitting 5 ps pulses at 675 nm.
abstract: A picosecond GaInP/AlGaInP/GaAs vertical external-cavity surface-emitting laser (VECSEL) at 675 nm is reported. The laser is mode-locked with a GaInP/AlGaInP/GaAs saturable absorber mirror and emitted ~5.1 ps pulses at a 973 MHz repetition rate and an average power of 45 mW. To our knowledge, this is the first demonstration of a passively mode-locked VECSEL emitting fundamental laser radiation at the visible part of the spectrum.
authors.affiliation: Optoelectronics Research Centre, Tampere University of Technology, Korkeakoulunkatu 3, Tampere 33720, Finland. sanna.ranta@tut.fi
authors.forename: Sanna
authors.initials: S
authors.lastname: Ranta
authors.forename: Antti
authors.initials: A
authors.lastname: Härkönen
authors.forename: Tomi
authors.initials: T
authors.lastname: Leinonen
authors.forename: Lasse
authors.initials: L
authors.lastname: Orsila
authors.forename: Jari
authors.initials: J
authors.lastname: Lyytikäinen
authors.forename: Günter
authors.initials: G
authors.lastname: Steinmeyer
authors.forename: Mircea
authors.initials: M
authors.lastname: Guina